CrystalSpace

Public API Reference

cstool/csview.h
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00001 /*
00002     CrystalSpace 3D renderer view
00003     Copyright (C) 1998-2001 by Jorrit Tyberghein
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_CSVIEW_H__
00021 #define __CS_CSVIEW_H__
00022 
00027 #include "csextern.h"
00028 
00029 #include "csutil/ref.h"
00030 #include "csutil/scf_implementation.h"
00031 #include "csutil/set.h"
00032 #include "igeom/clip2d.h"
00033 #include "iengine/mesh.h"
00034 #include "ivaria/view.h"
00035 
00036 class csBox2;
00037 class csPoly2D;
00038 
00043 class CS_CRYSTALSPACE_EXPORT csView : 
00044   public scfImplementation1<csView, iView>
00045 {
00046 private:
00048   csRef<iEngine> Engine;
00050   csRef<iGraphics3D> G3D;
00052   int OldWidth, OldHeight;
00053 
00055   csRef<iCamera> Camera;
00056 
00058   csBox2* RectView;
00060   csPoly2D* PolyView;
00062   csRef<iClipper2D> Clipper;
00063 
00065   void UpdateView ();
00066 
00068   bool AutoResize;
00069 
00070   CS::Utility::MeshFilter meshFilter;
00071 
00072   // View width.
00073   int viewWidth;
00074 
00075   // View height.
00076   int viewHeight;
00077 
00078 public:
00080   csView (iEngine *iEngine, iGraphics3D* ig3d);
00082   virtual ~csView ();
00083 
00085   virtual iEngine* GetEngine ();
00087   virtual void SetEngine (iEngine* e);
00088 
00090   virtual iCamera* GetCamera ();
00092   virtual void SetCamera (iCamera* c);
00093 
00094   virtual iPerspectiveCamera* GetPerspectiveCamera ();
00095   virtual void SetPerspectiveCamera (iPerspectiveCamera* c);
00096 
00097   virtual iCustomMatrixCamera* GetCustomMatrixCamera ();
00098   virtual void SetCustomMatrixCamera (iCustomMatrixCamera* c);
00099 
00101   virtual iGraphics3D* GetContext ();
00103   virtual void SetContext (iGraphics3D *ig3d);
00104 
00106   virtual void SetRectangle (int x, int y, int w, int h, bool restrictToScreen = true);
00108   virtual void ClearView ();
00110   virtual void AddViewVertex (int x, int y);
00112   virtual void RestrictClipperToScreen ();
00113 
00115   virtual void SetAutoResize (bool state) { AutoResize = state; }
00116 
00118   virtual void UpdateClipper();
00120   virtual iClipper2D* GetClipper ();
00122   virtual void Draw (iMeshWrapper* mesh = 0);
00123 
00124 
00125   virtual CS::Utility::MeshFilter& GetMeshFilter ()
00126   {
00127     return meshFilter;
00128   }
00129 
00130   // Get the view width.
00131   virtual int GetWidth () const
00132   {
00133     return viewWidth;
00134   }
00135 
00136   // Get the view height.
00137   virtual int GetHeight () const
00138   {
00139     return viewHeight;
00140   }
00141 
00142   // Set the view width.
00143   virtual void SetWidth (int w)
00144   {
00145     viewWidth = w;
00146   }
00147 
00148   // Set the view height.
00149   virtual void SetHeight (int h)
00150   {
00151     viewHeight = h;
00152   }
00153 
00154   virtual csVector2 NormalizedToScreen (const csVector2& pos)
00155   {
00156     return csVector2 (
00157         (pos.x + 1.0f) * float (viewWidth) / 2.0f,
00158         (pos.y + 1.0f) * float (viewHeight) / 2.0f
00159         );
00160   }
00161 
00162   virtual csVector2 ScreenToNormalized (const csVector2& pos)
00163   {
00164     return csVector2 (
00165         pos.x * 2.0f / float (viewWidth) - 1.0f,
00166         pos.y * 2.0f / float (viewHeight) - 1.0f
00167         );
00168   }
00169 };
00170 
00171 #endif // __CS_CSVIEW_H__

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